Hi!
> +int safe_bind(const char *file, const int lineno, void (cleanup_fn)(void),
> + int socket, const struct sockaddr *address,
> + socklen_t address_len)
> +{
> + int err, ret, i;
> +
> + for (i = 0; i < 30; i++) {
> + ret = bind(socket, address, address_len);
> + err = errno;
> +
> + if (!ret)
> + return 0;
> +
> + if (err != EADDRINUSE) {
> + tst_brkm(TBROK | TERRNO, cleanup_fn,
> + "%s:%d: bind(%d, %p, %d) failed", file, lineno,
> + socket, address, address_len);
I think that it would be a bit nicer if we created a helper to translate
the socket structure to it's string representation (and use it whenever
we deal with struct sockaddr passed from user). We would have to switch
on sa_family and then print either ip address or path (for unix
sockets), etc. But that would get us bind(8, '127.0.0.1:1024', ...)
failed instead of the raw pointer to the structure which is kind of
useless.
> + }
> +
> + tst_resm(TINFO, "bind('%p') failed with %s, try %2i...",
> + address, tst_strerrno(err), i+1);
Hmm, why do we do tst_strerno(err) here when
the only value for errno can be EADDRINUSE
(since we exit with tst_brkm() otherwise)
Why not just hardcode EADDRINUSE to the
message?
> + if (i == 0 && err == EADDRINUSE)
> + tst_resm(TINFO, "The given address is already in use.");
This message is not really useful because we
allready printed that bind failed with
EADDRINUSE with the tst_resm above.
> + usleep(1000000);
We can use sleep(1) instead now.
> + }
> +
> + tst_brkm(TBROK | TERRNO, cleanup_fn,
> + "%s:%d: Failed to bind(%d, %p, %d) after 30 retries",
> + file, lineno, socket, address, address_len);
> +}
> +
> +int safe_listen(const char *file, const int lineno, void (cleanup_fn)(void),
> + int socket, int backlog)
> +{
> + int rval;
> +
> + rval = listen(socket, backlog);
> +
> + if (rval < 0) {
> + tst_brkm(TBROK | TERRNO, cleanup_fn,
> + "%s:%d: listen(%d, %d) failed", file, lineno, socket,
> + backlog);
> + }
> +
> + return rval;
> +}
> +
> +int safe_connect(const char *file, const int lineno, void (cleanup_fn)(void),
> + int sockfd, const struct sockaddr *addr, socklen_t addrlen)
> +{
> + int rval;
> +
> + rval = connect(sockfd, addr, addrlen);
> +
> + if (rval < 0) {
> + tst_brkm(TBROK | TERRNO, cleanup_fn,
> + "%s:%d: connect(%d, %p, %d) failed", file, lineno,
> + sockfd, addr, addrlen);
> + }
> +
> + return rval;
> +}
> +
> +int safe_getsockname(const char *file, const int lineno,
> + void (cleanup_fn)(void), int sockfd, struct sockaddr *addr,
> + socklen_t *addrlen)
> +{
> + int rval;
> +
> + rval = getsockname(sockfd, addr, addrlen);
> +
> + if (rval < 0) {
> + tst_brkm(TBROK | TERRNO, cleanup_fn,
> + "%s:%d: getsockname(%d, %p, %p) failed", file, lineno,
> + sockfd, addr, addrlen);
> + }
> +
> + return rval;
> +}
--
Cyril Hrubis
[email protected]
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